containers/aardvark-dns · Security
netavark has incorrect error handling for malformed tcp packets
- GHSA ID
- GHSA-hfpq-x728-986j
- CVE ID
- CVE-2026-35406
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Impact
A truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU.
Patches
https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1
Workarounds
None
Credits
Thanks to @dkane01 for reporting this
CWEs
- CWE-400 · Uncontrolled Resource Consumption
- CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')
References
- https://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986j ↗
- https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1 ↗
- https://github.com/containers/aardvark-dns/releases/tag/v1.17.1 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-35406 ↗
- https://github.com/advisories/GHSA-hfpq-x728-986j ↗